Ore-concentrator.



l I tion consists of the construction and arrange- UNITED STATES Patented August 25, 1903.

PATENT OFFICE,

CALVIN A. BONNER AND EDWARD E. EUCHENHOFER, OF DAYTON, OHIO, ASSIGNORS TO DANIEL M. STEWART, OF XENIA, OHIO.

ORE-CONCENTRATOR.

SPECIFICATION Application filed March 7, 1902..

To aZZ whom it may concern:

Be it known that we, CALVIN vA. BONNER and EDWARD E. EUCHENH OFER, citizens of the United States, residing at Dayton, Mont-. 5 gomery county, Ohio, have invented certain new and useful Improvements in Ore-Concentrators, of which the following is a full, clear, and exact description.

The object of our invention is to provide a concentrator consisting of a stationary bed having a flexible section upon which is exerted from below a motive fluid-pressure, preferably compressed air, and regulated by means of acylinder and piston; and theinvenment hereinafter described and claimed.

In the drawings hereto attached, Figure 1 is a detail of a part of the device. Fig. 2 is- -a vertical sectional View of themachine, the cylinder being shown in elevation. Figs. 3 and 4 show the top and bottom view of the lower section of the device to which the valvecylinder is attached, and'Fig. 5 shows a section of the valve-cylinder arrangement.

We employ an ordinary frame 1 for the sides of the concentrator-top which surrounds the diagonal strips 2 and 3. The diagonal strips 2 and 3 are suchas are ordinarily usedfor such purposes. Underneath these diagonal strips we place section 5, which is composed of some flexible material and which will permit air to pass through it. To support this section 5, we place the frame 4 (fully shown in Fig. 1) underneath it. This frame is composed of a number of ribs 4, which are arranged at regular intervals, the object'being .to allow the air, as will be more fully explained, to pass through the space 6 between the ribs. We fasten this frame 4 to the cor- 4o rugated section 7, which is employed to assist in disseminating the air-pressure up to and through section 5. The corrugated section7 is constructed as shown in -Figs. 3 and 4. Fig. 3 shows a section of the top view, and Fig. 4 shows a section of the same in an in-f Verted position. It has a groove 8 extending around its outer edge anda number of small cross-grooves 10 extending across its top. In the center of this bottom and underneath there is a collar 11, forming an opening from formingpart of Letterslatent No. 737,326, dated August 25, 1903.

which extend and diverge air-passages 9,

which connect with groove 8. Directly under the 'openingformed by collar 11 in this corrugated section is attached the-cylinder-valve arrangement for causing the motive pulsations and vibrations up to and through the flexible section 5. This cylinder is composed of two parts, but may be cast integrally, the upper part 15 being smaller than the lower part 18. Within the smaller cylinder 15 isa small piston 13, and within the large cylinder. 18 is a large piston 27. The motive fluidpressure is exerted upon the large piston 27 into the space 28 by means of the inlet-pipe 16, which is connected with any means which may be employed for this purpose. When the piston 27 is forced back by this pressure,

the air passes to the rear part 29 of the cylin der by means of the air-passage 30, and the piston is then driven forward. The pipe 17 is an outlet for the air, and 26 is the bottom and end'of the large cylinder. This valvecylinder, Fig. 5, arrangement is fastened to the corrugated section 7 by means of a flange 25 and the bolts, as shown in vertical section 7 5 Fig. 2.

The intake-pipe 14 is for the purpose of conveying and supplying a pressure of air up to and through the flexible section 5,through the air-passages 9 and 8, corrugations 10, and diagonal passages 6. The smaller piston 13 acts as. a valve to open and close the opening of the pipe 14. As the piston 13 travels forward and backward, opening and closing the pipe 14, the compressed air is allowed to as-' cend from intake-pipe 14, through the collar, air-passages l1, 9, and 8, and corrugations 10, up through diagonal passages 6, and through the flexible section 5. The working of this smaller piston 13 causes a pulsation or vibrae tion on the flexible section 5. Theair when forced against flexible section 5 of the machine permeates or passes through it and assists thereby in the concentration. For supporting the'device any substantial frame may 5 be used, the support herein being designated by 23 having a top 21, at each endof which are adj usting-screws 19, and eachare adapted to be raised or lowered tocause the desired angle for the concentrator-bed which they too support. These adjusting-screws are each provided with a universal ball-and-socket joint 20 at their upper ends and connecting withthebottomofcorrugatedsection 7. These screws extend down through and work in nuts 22. They each are provided with a lock-nut 31 and a hand-wheel 32 for raising and lowering.

Having fully described our invention, what we desire to secure by Letters Patent is 1. In an ore concentrator operated by means of motive fluid-pressure a bed having diagonally-arranged strips placed over a flexible section which is supported by a ribbed frame resting upon a corrugated bottom hav- A ing air-passages diverging from an opening in its center, a cylinder arrangement placed under the opening of said corrugated bottom and said cylinder consisting of an enlarged part in which is operated a large piston to the upper part of which is attached a smaller piston which acts as a valve opening and closing the intake-pipe for the fluid-pressure, and

means for holding and regulating the position of the machine.

2. In adevice for concentrating ores by motive fluid-pressure, a bed having diagonallyarranged strips placed over a flexible section, a ribbed frame supporting said section, a corrugated bottom supporting said frame, said corrugated section having grooves upon its center for disseminating the pressure which is discharged into them by means of passages extending from an opening at the center of said section and said opening being placed over a cylinder arrangement for conducting the pressure and causing the pulsations of the pressure. I

In witness whereof we have hereto set our hands in the presence of two witnesses.

CALVIN A. BONNER. EDWARD E. EUCHENHOFER.

Witnesses:

WILLIAM II. YOUNG, GEO. R. YOUNG. 

